Bypass valve



FIG. 1 is a perspective view of a bypass valve;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

The broken lines shown in the drawing views are included for the purpose of showing environmental structure that forms no part of the claimed design. 

CLAIM The ornamental design for a bypass valve, as shown and described. 